Potato masher



FIG. 1 is a perspective view of a potato masher;

FIG. 2 is a front view thereof;

FIG. 3 is a right elevation view thereof, the left elevation view being a mirror image thereof;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a bottom plan view thereof. 

CLAIM The ornamental design for a potato masher, as shown, and described. 